Conjunction of the Moon and Mars

Dominic Ford, Editor
From the Conjunctions feed


The Moon and Mars will share the same right ascension, with the Moon passing 4°43' to the south of Mars. The Moon will be 4 days old.

At around the same time, the two objects will also make a close approach, technically called an appulse.

From Fairfield , the pair will become visible at around 20:11 (EST), 33° above your western horizon, as dusk fades to darkness. They will then sink towards the horizon, setting 3 hours and 57 minutes after the Sun at 23:23.

The Moon will be at mag -10.6, and Mars at mag 1.5, both in the constellation Taurus.

The pair will be too widely separated to fit within the field of view of a telescope, but will be visible to the naked eye or through a pair of binoculars.

A graph of the angular separation between the Moon and Mars around the time of closest approach is available here.

The positions of the two objects at the moment of conjunction will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
The Moon 04h14m20s 17°29'N Taurus -10.6 31'00"5
Mars 04h14m20s 22°12'N Taurus 1.5 4"4

The coordinates above are given in J2000.0. The pair will be at an angular separation of 46° from the Sun, which is in Pisces at this time of year.

The sky on 9 Apr 2019

The sky on 9 April 2019
Sunrise
06:21
Sunset
19:26
Twilight ends
21:03
Twilight begins
04:45


Waxing Crescent

19%

4 days old

Planets
Rise Culm. Set
Mercury 05:29 11:15 17:00
Venus 05:14 10:54 16:34
Moon 09:09 16:27 23:51
Mars 08:30 15:57 23:24
Jupiter 00:40 05:18 09:55
Saturn 02:26 07:09 11:52
All times shown in EDT.

Source

The circumstances of this event were computed using the DE430 planetary ephemeris published by the Jet Propulsion Laboratory (JPL).

This event was automatically generated by searching the ephemeris for planetary alignments which are of interest to amateur astronomers, and the text above was generated based on an estimate of your location.

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09 Sep 2020  –  Mars enters retrograde motion
06 Oct 2020  –  Mars at perigee

Image credit

The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.

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